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060f24e310
Currently the code to translate host side addresses and ports to guest side addresses and ports, and vice versa, is scattered across the TCP code. This includes both port redirection as controlled by the -t and -T options, and our special case NAT controlled by the --no-map-gw option. Gather this logic into fwd_nat_from_*() functions for each input interface in fwd.c which take protocol and address information for the initiating side and generates the pif and address information for the forwarded side. This performs any NAT or port forwarding needed. We create a flow_target() helper which applies those forwarding functions as needed to automatically move a flow from INI to TGT state. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
18 lines
456 B
C
18 lines
456 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright (c) 2022 Red Hat GmbH
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* Author: Stefano Brivio <sbrivio@redhat.com>
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*/
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#ifndef TCP_SPLICE_H
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#define TCP_SPLICE_H
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struct tcp_splice_conn;
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union sockaddr_inany;
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void tcp_splice_sock_handler(struct ctx *c, union epoll_ref ref,
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uint32_t events);
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void tcp_splice_conn_from_sock(const struct ctx *c, union flow *flow, int s0);
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void tcp_splice_init(struct ctx *c);
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#endif /* TCP_SPLICE_H */
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